Syntax Magazine

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Y |\ I I /\ ]£ Serving Timex-Sinclair

I | \| J X Personal Computers

A PUBLICATION OF THE HARVARD GROUP

VOL. 4 NO. 4

ISSN 0273-2696

APR, 1983

IN THIS ISSUE

SINCLAIR CLARIFIES PARTS POSITION

8K Programs

Life Expectancy . 14

Office Manager . 20

Book Review
Crunchers — 21 Simple
Games for the Timex/

Sinclair 1000 2K . 9

Classified Ads . 21

Dear Editor . 12

Machine Code
Easier Loading for

MC Utilities . 10

Hardware Project
Green and Black and

Read All Over . 16

Hardware Review

The Parrot . 8

News, New Products .... 1 , 2

POKE Graphics . 18

Program Improvements ... 15
Software Review

RAM-Dr ive . 6

Syntax Errors . 3

Title Framing and

Centering . 3

Users' Groups . 3

Vendor Report . 4

Index to Advertisers

Brainchild Computer . 4

Byte-Back . 6

Discount Software . 16

E-Z Key . 9

Frog Software . .10

Intercomputer . 13

Kopak Creations, Inc... 17

Melbourne House . 18

Memotech Corp. . . . . . 7

R.I.S.T . 15

Sinclair . 11

Sof tsync . 5

Zebra Systems . 19

Sinclair only sells replacement parts to kit
owners who received damaged parts with their
kits. Contrary to some reports, parts are
not generally available for all ZX/TS owners.
Also, Sinclair no longer sells the kits.

TIMEX SLASHES PRICE

Timex lowered their TS1000 price to $69.95
and extended the $15 rebate deadline to April
30. The TS2000 release date is slated for
the second quarter but most observers agree
this is optimistic. Still no information on
the release of the 16K TS1500.

NEW ZX/TS PUBLICATION

Timex-Sinclair User . a monthly magazine
imported from the U.K., debuts in N. America
in May. Price: $2.95 per issue, $29.95 per
year. ECC Publications Inc., 49 La Salle
Ave., Buffalo, NY 14217, 716/834-1972.

EXCLUSIVE ZX/TS EXHIBITION

SIN-TIME Exhibition will sponsor 10-15 ZX/TS
vendors at the Dunfey Houston Hotel on April
28-9 from 10A-8P. Adult admission is $10 for
both days, includes subscription to SIN-TIME
Review. Michael Robinson, SON Productions,
POB 742163, Houston, TX 77274.

SOFTWARE COMPANY SEEKS PROGRAMMERS

Pegasus Micro Systems is currently looking
for programmers to write new software.
Royalties range from 50 to 80 percent of
profit, depending on the amount of work your
program needs to reach market and what per¬
cent of that work you contribute. Pegasus
also just announced new ZX/TS software. For
details, contact Pegasus Micro Systems, POB
397, Chestertown, MD 21620.

1

NEW PRODUCTS AND SERVICES

Easy Eye Filter gives yellow screen
on b/w TV or monitor. Comes with
stick-on fasteners, 10" x 12" trim-
mable to smaller sizes, special
order larger sizes. $12.95 plus $2
P&H. Strap Down is a pre-cut and
punched strap to hold your ZX/TS
and RAM pack. Includes cable clamp
to organize cables, $5.95 plus $1
P&H. Artisan Electronics, POB 6631,
Portsmouth, VA 23793.

Individual instruction packs on
ZX/TS video, keyboard, loading and
saving, and memory packs. Covers
trouble shooting, tips and hints.

$7 each, Spectra Computer Products,
POB 41795, Tucson, AZ 85717.

Free membership to Timex Computer
Club and monthly newsletter. Timex
Computer Club, Margot Murphy, POB
2655, Waterbury, CT 06725.

ZX/TS bulletin board free, $15 one¬
time membership fee activates spe¬
cial features — in Nashua, NH. Call
300/1200 baud data-line 603-888-
6999. Chuck Oropallo is SYSOP, 6
April Dr., Nashua, NH 03060. Leave
messages on-line for user 10053 or
mail to Jim Giddings, 77 Ives St.
#305, Providence, RI 02906.

16K Mail Master program has edit
and search routines. Options are:
add names, list, edit, inform,
search/view, and search/print. Sup¬
ports ZX/TS-compatible printers.

16K Data Master has full edit and
search routines. 16K Chart Master
generates and analyzes bar charts.
Tape with manual $6.95 each. Free
catalog available. L. Harmon, 4909
Clearlake Dr., Metairie LA 70002.

CFASTDATA utility lets you write
data to tape from strings, arrays
or memory locations. Helps trans¬
late BASIC programs with WRITE and
INPUT statements. Needs 16K or
more, $20 plus $1.50 P&H. CFAST-
DUET has two utilities, CFASTLOAD

and CFASTDATA. Use together to
write and load quicker. Needs 16K,
$27.50 plus $1.50 P&H. Cosmonics,
POB 10358, San Jose, CA 95157.

Memotext word processor with edit¬
ing features puts 32-character
lines on screen. Memopak Assembler
codes, edits Z80 source programs
and assembles into MC. $49.95
each, Memotech, 7550 W. Yale Ave.,
Denver, CO 80227, 800/662-0949.

ZX/TS XFORTH language uses a simple
one word call to return to BASIC.
Needs 16K, leaves 10K for user code
and dictionary enhancement. Also
has extra utilities such as PLOT,
CLS, RAND. Pre-publication release
offer until April 23, $14 plus $1
P&H. Hawg Wild Software, 7575
Cantrell/21, Little Rock, AR 72207.

New free catalog of computer inter¬
ference control products (#831)
helps cut out interference on your
ZX/TS. Electronic Specialists,
Inc., 171 South Main St., Natick,

MA 01760, 617/655-1532.

Z-TOOLS machine code utilities in¬
clude: MERGE combines two BASIC

programs; RENUM renumbers selected
lines, includes numbered GOTOs and
GOSUBs and flags those with expres¬
sions; COPY and DELETE selected
blocks of lines; VERIFY checks tape
contents against memory. Two 16K
versions: one addressed to 14-16K,

and to 8-10K. $14.95, Sinware, Box

8032, Santa Fe, NM 87504.

Reverse Video Module converts char¬
acters to white on dark backround.
Module with instructions, $8.95.

16K Easy Graph converts data into
bar graph, $9.95. 16K ACZ General

Ledger records ledger transactions,
handles up to 400 entries, $29.95.
Cottage Technology, 5720 W. Little
York, Suite 178, Houston, TX 77091.

Z-XLR8 tape storage system SAVEs
and LOADS files 6-10x faster than
standard LOAD/SAVE. Error checking

2

insures proper program loading.
Cassette tape version can relocate
between 8-32K, needs 16K, $11 ppd.
EPROM version resides between 14-
16K, $21 ppd. Advanced Interface
Designs, POB 1350, State College,

PA 16801, 814/237-9268.

Sunbelt Conference on Educational
Computing, June 1-4, offers ZX/TS
instruction for both novices and
advanced users. Films, exhibits,
demonstration lab, and public do¬
main software exchange also in¬
cluded. Dr. Jerry Willis, c/o
College of Education, Box 4560,
Texas Tech University, Lubbock, TX
79409, 806/742-2381.

16K Biorythm/Compatibility program
computes emotional, physical and
intellectual cycles for any month.
Gives degree of compatibility be¬
tween two people based on bioryth-
mic cycles. Tape $9.95 plus $1.50
P&H. Software Unlimited, POB 147,
Grandview, MO 64030.

TITLE FRAMING AND CENTERING

You can dress up displays by
adding the following listing to the
beginning of your programs.

Title Framing accepts up to 29
characters and centers them on any
line from 1 to 20.

Inverse graphics are:

Line 20 — graphic 5, 8
Line 40 — graphic 6
Line 50 — graphic 7

Try graphic A (checked border)
or asterisk (shift B; inverse
asterisk border) in place of all
graphics for variation.

RUN in FAST, BREAK to exit.

SYNTAX ERRORS: In R. Hensley's
Expanding Existing 16K Programs,
Jun.82, Jerry Minchy reports that
the last two POKES, step 4, are:
POKE 16386,252
POKE 16387,254

USERS ' GROUPS

To annouce or locate a group not
listed, drop us a line (with SASE)
or call 617/456-3661. SYNTAX, RD
2, Box 457, Harvard, MA 01451.

Aberdeen, NJ: R.B. Mawby, 62
Avondale Ln., Aberdeen, NJ 07747,
201/566-7498.

Altadena, CA: Irving Helbling,
1785 La Paz Rd., Altadena, CA
91001, 213/797-3729.

Chestertown, MD: Baltimore Users'
Group, POB 397, Chestertown, MD
21620, 301/348-5865.

Hillsborough, Pasco, Pinellis and
St. Petersburg Counties, FL: TAS

BAM — Timex and Sinclair Bay Area
Microcomputer Group, Mel Routt,

POB 644, Safety Harbor, FL 33572.

Lakewood, CO: Jim Sandon, 500
Vance #116, Lakewood, CO 80215,
303/233-3412.

San Francisco, CA: Users' Group of
the Presidio of San Francisco, Fred
Hall, 246 29th Ave., San Francisco,
CA 94121, 415/221-4790.

Rio de Janeiro, Brazil: Walter
Brandao, Rua Cesario Alvim, 55 Apt.
107, Bl.A 22261, Botafogo, Rio de
Janeiro, Brazil.

W.C. Andrews, San Anselmo, CA

5 LET L=10
10 INPUT R$

20 PRINT RT L,
y; "I R*; " I**

30 FOR N=@ TO
4.0 PRINT RT L-
> /2+N; 'W

50 PRINT RT L +
) /2+Nj ’■**”

60 NEXT N
SYNTRCTIC SUM:

(31- (LEN R$+£) > ✓

(LEN fl$+l>

1,(31- (LEN RS+2J

1,(31- (LEN R*+2J
10754- , 8K ROM

Toronto, Ontario, Canada:

Timex-Sinclair Users' Club, POB
7274, Station A, Toronto, Ont.,
Canada M5W 1X9.

West Palm Beach, FL: The South
Florida ZX Users' Group, Bob
Pearsall, 9220 Fountain Rd., Lake
Worth, FL 33463, 305/967-7784.

3

VENDOR REPORT

CHANGE YOUR

TIMEX/SINCLAIR 1000 DISPLAY
TO FULL COLOUR GRAPHICS

with

KOLORWORKS

LOOK AT THE FEATURES ! ! !

* Plugs into ZX81/1000 (edge connector)

* All text will run on the color tv

* Module contains it's own memory

* User defined characters & graphics up to

256x192 pixels

* Latest technology with TMS991 8 V DP

(32 sprite levels)

* Module contains extension of basic commands

including: PAPER/INK/BORDER/BIN/
SPRITE/OUT/INP / etc.

for $149.95

Use your KOLORWORKS immediately with a
game cassette for $9.95

In response to complaints about
undelivered software from SMUG,
Sinclair Midwest Users Group direc¬
tor Robert Carroll says SMUG (ad¬
vertised in SYNTAX classifieds,

Mar. 82) and the users group have
not been affliated since Mar. 82.
Initially, the users' group lent a
helping hand to the two entrepre¬
neurs who started SMUG. Carroll
says they have no information on
SMUG's present status or orders
taken by them. But, the users'
group would like to try to rectify
the situation. Carroll says they
do have some of the software SMUG
was selling. Drop them a line with
proof of order and non-receipt of
goods (cancelled check, etc.) and
they will try to fill your order.
Address to: Attn. Lost Software,
Sinclair Midwest Users Group, POB
13042, Fort Wayne, IN 46866.

This delightful game is designed for hours of fun using some
of the color graphic capabilities of KOLORWORKS. The
cassette also contain* a short program to familiarize you
with some of the commands and graphics.

MAIL TO:

BRAINCHILD COMPUTER WORKS, INC.

P.O. Box 506
Pewaukee, Wl 53072

Price + Qty. Amount

KOLORWORKS

$149.95

—

CASSETTE

9.95

Shipping and Handling

4.95

1

Wi. Res. add Sales Tax

My Dcheck D money order enclosed

TOTAL

Name

Street _

City _ State _ Zip _

Please allow six to eight weeks for processing. Thank you.

For further information - Send $2.00 (credited to order)
WATCH FOR:

"GAAMWORKS"-

Joystick Ports / Sound / Cartridge Slot

Unresolved problems with Norris
Electronics? Originally of Slidell
LA, Tracy Norris is now at: 410 S.
Gatehouse, Apt. A, Metairie, LA
70001, 504/837-8152. Tracy did
contact us, but we have not heard
from his customers.

Aerco reports that their floppy
disk interface has a 2 1/2 week
production back-log. Aerco, Box
18093, Austin, TX 78760-8093,
512/385-7405.

Manager Ken Koster of Gladstone in
Buffalo reports that they are now
shipping out in-stock items in two
to three days. He also clarified
their phone numbers, reported last
month. For orders only till 1AM,
call 800/833-8400. For informa¬
tion, questions and problems, call
716/874-5510 (9-5 EST) .

M-Coder, a compiler from Kopak, is
supposed to code 99.9 percent of
all BASIC. After checking, Kopak
discovered this is untrue and will
discontinue the program.

4

3-Dimensional Graphics?

when you steer your Starlite
fighter down the Zarway space
corridor you won't believe your
eyes because the graphics are
so good and the game so fast.

$16.95

SOFTSY1MC, BtMC.

MOTHERSHIP 16K

For Your Timex/Sinclair 1000

You can find MOTHERSHIP and all of SOFTSYIMC'S
wide variety of programs for the TS1000/ZX81 at your
local retail store or write us for a free catalog and
program listing. Prices range from $14.95 to $19.95.

Please rush me 1 MOTHERSHIP program. I enclose $16.95 i
+ $1.50 shipping and handling (N.Y. residents add
sales tax).

□ Please send me a free catalog & program listing.

NAME _ I

ADDRESS _ j

CITY _ |

STATE _ ZIP _ |

SOFTSYNC, INC., 14 East 34th St. New York, NY 10016 I
(212) 685-2080

SOFTWARE REVIEW

Product: RAM-Drive

Price: undetermined

ROM/RAM required? 8K/64K
Printed listings?

Program listable?

Written in:

Written by:

From:

No
No

Machine Code
Peter Ulrick
International Publishing and
Software, 49 La Salle Ave.
Buffalo, NY 14214

RAM-Drive is a machine code
utility program that gives you
powerful program editing comands.
Peter Ulrick uses addresses 8192-
9215 in your 64K RAM to store ma¬
chine code subroutines that LOAD
more than one BASIC program at a
time, renumber programs, merge up
to 20 programs, create free-stand¬
ing transferable data sets and
more. The utility is menu-driven
from MC but also uses command mode
USR calls. It's like having a Disk

MODULES FOR:

TIMEX-Sinclair

MODEM $119.*

$149.“ ASSEMBLED

(RS-232) Port & Software
Included)

64-K MEMORY $129.*

the "ULTIMATE MEMORY"
FEATURES: $139.“ ASSEMBLED

• Battery backup ,

• PROM/ROM socket

• Reset Switch

• BYTE-BACK EXCLUSIVE FULL 64-K

The 0-8K area is available You can execute a copy routine (provided) to
copy the TIMEX ROM into the 0-8K area of RAM then flip a switch and you
have your operating system in RAM You can modify it and create your
own customized operating system.

WHY PAY MORE FOR LESS FEATURES?

GET THE “ULTIMATE MEMORY" BYTE-BACK UM-64

A COMPANY YOU CAN DEPEND ON

BYTE-BACK CO. is the oldest and one of the world’s largest
suppliers of modules for the ZX81 and TIMEX-Sinclair 1000
computers. There are thousands of BYTE-BACK modules in use
with a track record of proven reliability.

RS-232 PRINTER INTERFACE Only $59* KIT $69* ASSEMBLED
CONTROL MODULE 8 Relays, 8 Inputs, $59* KIT $69* ASSEMBLED

16K MEMORY UM16 $59 .* KIT $69 “ ASSEMBLED A TESTED
Battery backup, reset switch, PROM/ROM socket PLUS. . .

1 year, 100% trade-in credit towards the UM-64.

BYTE BACK CO.

Rt. 3, Box 147, Brodie Road

Lees vi lie, S.C. 29070 _ d>

ORDER PHONE 803-532-5812

Add $4.95 shipping & handling to all orders. !■■■■ - ''<J\
90 Day Warranty On All Modules. 10— Day Return Priviledge

Operating System without the disk.

Using RAM-Drive you can concat¬
enate programs on one tape with a
command menu.

LOAD RAM-Drive, then load pro¬
grams you want to string together
(one at a time) and store them in
RAM-Drive's program stack (32-S4K
area) with command S. A selection
menu program writes in the BASIC
area of your ZX/TS. You can swap
any program from the stack back and
forth into the BASIC area (1S-32K)
with command T (trade).

Use the renumber command, this
time a USR call, to change the line
number and increment between num¬
bers of each program. You can then
merge programs using another USR
call. The result is one program
from which you can call up any of
the original short games. SAVE the
new program in the usual way.

Other useful features of RAM-
Drive are: RemFill, 31ock Move,
Fetch, Kill and Wipe.

Mr. Ulrick's documentation
gives examples for most functions
along with a command summary list.
However, most functions are called
with USR commands which I found
inconvenient. The program loads
and moves itself, so you can't
easily see the original code.

One other flaw — the documenta¬
tion doesn't mention that storing
over 20 programs is difficult but
possible. Each program you store
takes up about IK, so depending on
their size it is possible to store
more. But, only 20 names can be
listed on the screen.

RAM-Drive is a valuable and
versatile utilities package.

P. J. Donnelly, Centerport, NY

RAM-Drive was originally marketed
by ZX Users Group of NY (Box 560
Wall St., NY, NY) as Disk-M Multi¬
programming Features, $25 for non¬
members. 'RAM-Drive is in the pro¬
cess of becoming an International
Publishing and Software product.
Contact them for more info. — Ed.

6

TIMEX MAKES THE
COMPUTER,

BUT WE MAKE IT TICK.

If you own a TS-1000 or ZX-81 computer and want to bring out the power within it, you’ll want Memotech. From easier input to high

quality output and greater memory, Memotech makes the add-ons you demand. Every Memotech peripheral _

comes in a black anodized aluminum case and is designed to fit together in “piggy back” fashion enabling you
to continue to add on and still keep an integrated system look.

MEMOPAK RAM All Memopak RAMs are directly addressable, user transparent, are neither switched nor
paged and no additional power supply is required. You can also choose the Memopak RAM which is just
right for your needs. From economy to power. 16K RAM The Memopak l6K RAM is the most
economical way to add memory to your TS-1000. It is fully compatible with the Timex or Memotech l6K
RAMs to provide you with up to 32K of RAM. The 16K RAM also offers additional add-on capabilities
through its “piggy back” connection. 32K RAM The 322K Memopak enables you to execute
sophisticated programs and store large data bases and like the l6K RAM is fully compatible with Timex’s or
Memotech’s l6K RAMs to give you a full 48K of RAM. 64k RAM The 64K Memopak is powerful
enough to turn your TS-1000 into a computer with capabilities suitable for business and educational use. It
accepts such BASIC commands as 10 DIM A (9000) . MEMOCALC Memocalc, our spreadsheet analysis

software, enables TS-1000 users to perform complex number crunching routines with ease. With
the 64K RAM a table of up to 7000 numbers with up to 250 rows or 99 columns can be specified.

Quick revisions can be achieved by entering new data to your formula.

MEMOTECH KEYBOARD For ease of operation, the Memotech keyboard is a high quality
standard typewriter keyboard, with TS-1000 legends. The keyboard is cable connected to a buffered
interface which is housed in a standard Memopak case and plugs directly into the back of the

TS-1000 or other Memopaks. MEMOPAK HRG The Memopak High Resolution Graphics, with
up to 192 by 248 pixel resolution, enables display of high resolution “arcade game” style graphics
through its resident 2K EPROM, programmed with a full range of graphics subroutines.
CENTRONICS PARALLEL AND RS232 INTERFACES
Memotech’s Interfaces enable your TS-1000 to use a wide range of
compatible printers. The resident software in the units gives the
complete ASCII set of characters. Both Memopak Interfaces provide lower case character capabilities and
up to 80 column printing. The RS232 Interface is also compatible with modems and terminals.

SEIKOSHA GP IOOA PRINTER The Seikosha GP 100A uses a 5x7 dot matrix printing format with
ASCII standard upper and lower case character set. Printing speed is 30 characters/second with a

maximum width of 80 characters. The printer uses standard fanfold paper up to
9-1/2 inches wide. The GP 100A is offered as a package including cable and

interface. Other printer packages are also
available through Memotech.

ORDER AT NO RISK. All Memotech
products carry our 10 day money back
guarantee. If you’re not completely
satisfied, return it within ten days and we
will give you a full refund. And every
Memotech product comes with a six
month warranty. Should anything be
defective with your Memotech product, return it to us and we will repair or replace
it free of charge. Dealer inquiries welcome. To order any Memotech product use

the order coupon or call our toll-free number 800/662-0949.

TS-1000 is a registered trademark of Timex Corp.

UvUyi^ii

CORPORATION

7550 West Yale Avenue, Denver, Colorado 80227, 303/986-1516, TWX 910-320-2917

Mail To: Memotech Corporation, 7550 West Yale Ave., Denver, CO 80227
Code: SIX-4

Price* . Qty. Tl

1 16KRAM

$ 49.95

| 32KRAM

99.95 /

| 64K RAM

149.95

| Memocalc

49.95

1 Keyboard with Interface

9995

1 High Resolution Graphics

9995

1 Centronics Parallel Interface

74.95

, RS232 Interface

99.95

\ Printer Cable

19.95

[ GP 100A Printer Package**

399.00

• Shipping and Handling

4.95

$ 4.95

1 Thx (Colorado residents only)

1 TOTAL $

1 *All prices quoted in U.S. dollars. Prices and specifications subject 6
| **Please add an additional $5.00 for printer shipping charges.

1 □ Check □ MasterCard □ Visa

change without noti

l

1

l ' , ,

1 Name

1

Phone number

1

j Address

1 City

L_

State Zip

1

-1

HARDWARE REVIEW

Product: The Parrot, Voice

Synthesis Module
From: R.I.S.T., POB 499, Fort

Hamilton Sta. , NY 11239
Cost: $89.95 plus $4 P&H

Allop'hone concatenation simply
means stringing fundamental sounds
together. This is the speech syn¬
thesis method used in The Parrot.

R.I.S.T.'s module, The Parrot,
produces 64 separate allop’nones.
R.I.S.T. used Voicetech's general
purpose speech development kit (see
Radio El ectronics. Mar. 83) combined
with chips and software to produce
a cost effective ZX/TS speech unit.

Using Parrot's pilot program
with documentation, I made the unit
say "hello" almost immediately.

The voice is, unfortunately, chat
"tinny" mechanical one you assoc¬
iate with first generation robots.
Parrot comes complete with a reset
button, and ZX/TS expansion bus,
and provides for an external power
supply to power other peripherals
through the unit. The Parrot func¬
tions as an I/O port. R.I.S.T.
told me Parrot uses ports 0-15 and
54-80, but the initializer program
uses only location 03 for IN and
OUT commands.

Documentation is professional
and good but does not explain the
machine language initializing rou¬
tine, which uses the calculator
stack. Most annoying is the lack
of OEM specs and schematics on the
voice chips. The crash course on
voice synthesis in the documenta¬
tion might be superfluous for some
users and certainly could use a
bibliography.

Parrot has two minor flaws:
you must supply your own speaker,
and the external power jack is a
sub-mini (these are hard to find).

Overall, R.I.S.T.'s Parrot is
an excellent unit and performs up
to and beyond my expectations. It
has great potential as an annucia-
tor, games, clocks and applications

for the handicapped.

Parrot does not speak words you
type in. You enter words phoneti¬
cally, including clicks, stops and
pauses after the appropriate three
character phoneme or sound codes.
R.I.S.T. plans to develop text-to-
speech software. Parrot's expanded
loader program allows cursor edit¬
ing, which is a big plus.

R.I.S.T. tells me that future
Parrots (starting Apr.l) will in¬
clude a tape of their long version
phoneme entry program (16K needed).
After using the 10-line BASIC entry
program I don't look forward to
keying in the 80 or 90 lines in the
longer version.

Paul Donnelly, Centerport, NY

If you already own a Parrot and
have a ZX81/TS1000, R.I.S.T. says
you should change the MC program,
line 6, pg.6, from: (for ZX81s)

103 ENTER to 130 ENTER, (for ZX80S
with both ROMs) it stays 43 ENTER.

SPEECH SYNTHESIS

Voice or speech synthesizers
combine hardware and software into
systems that let your computer talk
to you. Computers and Electronics
and Radio Electronics (Mar. 83) cov¬
ered two methods of producing human
voice sounds on ZX/TS computers.
They are: Pulse Code Modulation
and Linear Predictive Coding.

Pulse Code Modulation (PCM)
uses silicon chip recordings (digi¬
tized) of a voice speaking selected
words. A human voice encodes words
in a ROM chip resulting in life¬
like sounds. PCM's disadvantage
is you must have ROM addresses for
all desired words.

Linear Predictive Coding (LPC)
feeds a combination of random and
periodic signals to the electronic
voice tract. These periodic and
random signals are modulated digi¬
tally to produce unique individual
sounds. But, these sounds have an
unnatural, mechanical ring to them.

8

BOOK REVIEW

Voicetech sells units that use
the LPC technique (covered Mar. 83,
Radio Electronics) . R.I.S.T.'s
Parrot includes Voicetech's evalua¬
tion kit and necessary ZX/TS hard¬
ware. These units produce sound by
concatenating allophones (individ¬
ual unique sounds) into an intelli¬
gible word or phrase.

Which technique of speech syn¬
thesis is better? Pulse Code Modu¬
lation produces a better sound, but
costs more both in dollars and
memory space. Current versions of
Linear Predictive Coding are hard
on untrained ears (it's similar to
listening to someone with a heavy
accent). But, LPC has potential
for infinite speech and the quality
will no doubt improve.

As the micro market grows more
competive and peripheral prices
drop coupled with increased memory
size of most personal computers,
both will become viable methods of
speech synthesis.

Paul J. Donnelly, Centerport, NY

ITS HERE!!

The keyboard you have
been waiting for!

A LARGE 60 KEY TACTILE FEEL KEYBOARD
(MEASURES 10" x 4") THAT PLUGS INTO THE SAME
CONNECTORS AS EXISTING KEYBOARD ON YOUR
ZX81 OR TIMEX SINCLAIR 1000. IT HAS ALL
SILKSCREENED LEGENDS IN 3 COLORS ON THE
BASE; MOLDED LEGENDS & GRAPHICS ON KEY TOPS;
8 AUTOMATIC SHIFT KEYS (NO SHIFTING REQUIRED)
FOR EDIT, DELETE, SINGLE & DOUBLE QUOTES,
COLON, SEMI-COLON, FUNCTION & STOP; 5" SPACE
BAR; 2 SHIFT KEYS; NUMERIC KEY PAD.

ONLY $84.95

MASS. RESIDENTS ADD 5% SALES TAX
SHIPPING & HANDLING $4.00/UNIT

DELIVERY 4 - 6 WEEKS. QUANTITY DISCOUNTS. WE
WILL ACCEPT MC/VISA. PLEASE INCLUDE #'S, EXP.
DATE AND SIGNATURE. FOR MORE INFORMATION
SEND SASE. SEND INQUIRIES, CHECK OR MONEY

ORDER TO: E-Z KEY SUITE 75B

711 SOUTHERN ARTERY
QUINCY, MA 02169
617/773-1187

Title: Crunchers — 21 Simple

Games for the
Timex/Sinclair 1000 2K
By: Yin Chiu and Henry Mullish

From: McGraw-Hill Book Company

Princetown Road
Hightstown, NJ 08520
609/426-5254

Price: $8.95 (softcover, 137 pp.)

Yin Chiu and Henry Mullish are
computer professionals and polished
writers. Their expertise produced
an imaginative and useful book. New
Timex Sinclair owners will find the
games fun and original and also
acquire programming skills while
working through Crunchers.

Each game occupies its own
chapter. This convention allows:
an introduction to the game, the
program listing, keyboarding notes,
points of interest (programming
techniques) , and possible adapta¬
tions (improvement hints).

Crunchers includes games in
every imaginable category. You get
card and dice games, skills testing
games, invading aliens, spelling
and math games, shooting galleries
and board games.

I am particularly impressed by
the book's appearance. It is well
designed and illustrated. Program
listings are done in easy-to-read
print, and keyword entries are done
in boldface type. Keyboard hints
list required graphics characters.

Crunchers is an excellent book
for Timex Sinclair beginners. It
provides hours of fun and valuable
instruction. It is well written
and programmed. The authors sum it
up best with, "none of the programs
requires more than the 2K of random
access memory (RAM) that is built
into the computer. Despite the
restriction imposed by the size of
available memory, you will be sur¬
prised at the wide range of games
that are possible."

John C. Connell, Neptune Beach, FL

9

EASIER LOADING FOR MC UTILITIES

Many machine code utility pro¬
grams reside in high memory above
RAMTOP. Usually, utilities are
saved on cassette as a BASIC source
program and the MC is stored either
in a numeric array, string varia¬
ble, or REM statement.

Yet, using MC utilities can be
a chore. The usual procedure is:

-POKE 16388 and 16389 to establish
the new RAMTOP.

-Execute NEW to reinitialize the
stacks under the new RAMTOP.

-Load the utility source program.
-Run the utility source to move
the MC above the new RAMTOP.
-Execute NEW to dismiss the
utility source program.

Now, you load or enter the program
your MC program will work on.

You can arrange the utility
source program to do all these
steps automatically. First, you

Sinrlair !
Computing

Not just another newsletter, Sinclair Computing is a
typeset magazine with color illustrations, published
monthly. If you own a Sinclair or Timex/Sinclair
Computer you need Sinclair Computing. Every issue is
packed with informative Articles, New Products, Users
Groups, News Bits, Letters, Ask Sinclair Corp., Reviews,
Tutorials, Hardware Projects (many for under $10),
Programs, and Games.

FOR JUST $2.95 PER ISSUE

YOU CAN MAKE THE MOST OF YOUR
SINCLAIR or TIMEX/SINCLAIR COMPUTER.

transfer the MC from its original
location (a REM statement, for
example) to a location below the
present RAMTOP but above the future
one. Next, the source program
POKES 16388 and 16389 to set the
new RAMTOP. It then executes NEW,
wiping itself out and reinitializ¬
ing the stacks.

During the MC transfer the
machine stack is still active.
Consequently, the machine code's
final location can't extend too
high into memory. Assuming your
POKE operation (used by the source
to transfer the MC) just adds or
subtracts (for example, adding a
starting address to a byte index
counter), only 44 bytes must be
avoided below the initial RAMTOP.

If you have 16K, you can relo¬
cate the MC to addresses as high as
32723. If you have the available
memory, you can start the MC at
location 32000, and allow up to 724
machine code bytes.

To add an auto function to your
source program, add a short routine
(I usually start at line 9000)
consisting of the SAVE "(label)"
instruction followed by GOTO 0. To
save your source program, hit GOTO
9000. When you load your program
it automatically resumes with the
GOTO 0 line. (I use GOTO 0 rather
than RUN in case the MC is stored
in a numeric array or string varia¬
ble — RUN would wipe it out.)

Following is an illustrative
source program that assumes a 20-
byte MC program and a tape save
name "PGM".

If after your first issue you are
not fully satisfied... cancel your
subscription for a FULL refund.

Sinrlair

Lome

omputing

BOX 95-SC

Glenmont, New York 12077

Sinrlair .
Lomputing

□ ,
□ ,

one year for just $36.
two years for just $65.

Enclosed Is my check or money order.

SlX^l

D. A. Kerr, Dallas, TX

1 REM (20 BYTES OF MCI
10 FRST

20 LET R =32000

30 FOR I = 16514- TO 16533

4-0 POKE R , PEEK I

50 LET R=R + 1

60 NEXT I

70 POKE 16388,0

80 POKE 16389,125

90 NEW

900© SRUE "PGM"

9010 GOTO 0

SYNTACTIC SUM: 10019, 8K ROM

io

For ZX81 orTSlOOO

software savings, rip off tliis ad.

□

THE STAMP COLLECTOR
(#31) Inventory and store up to 600
SCOTT numbers in a single session show¬
ing quantity on hand, by major classifica¬
tion, and provide full want list support.

□

VU-CALC (#11) This program con¬
structs, generates, and calculates large
tables for financial analysis, budget
sheets, and projections. An immensely
powerful analysis chart.

□

SUPERMAZE (#34) Navigate your
way through a three-dimensional maze,
with trapdoors, gold bars, marker stones,
and compass. Ten separate mazes. Three-
dimensional graphics.

□

PERSONAL FINANCE PLAN¬
NER (#28) Perform calculations,
finance a house, a car, keep savings
accounts, repay loans and calculate an am¬
ortization schedule which can be generated
for any of the financial programs.

□

SUPER MATH (#14) Drill yourself on
addition, subtraction, multiplication, and
division with five levels of difficulty. Each
problem graphically depicted.

□

THE HOME IMPROVEMENT
PLANNER (#29) Store up to 20 room
measurements (length, width, height),
compute total area in each (wall, floor),
estimate costs of painting, wall papering
and carpets and draw house blueprints.

STATES AND CAPITOLS (#32) PINBALL (#35) Plays like real pinball
Test yourself on the fifty states and their complete with flippers, bumpers, "nudge,”

capitols. Three options of review are availa- bonus points and more. Uses fast, efficient

ble. (1) States, you provide capitols. (2) machine code to choose its moves.

Capitols, provide states. (3) A mix of states
and capitols.

THE FLIGHT SIMULATOR (#6) STOCK MARKET GAME (#27)

Take control of highly maneuverable light Bull or bear? This realistic simulation lets

aircraft. With full controls, instrumentation you analyze information, buy and sell

and navigational aids to avoid hazards in stocks, take out and pay off loans ... and

landing. win, if you can accumulate $50,000 in

“The Market.”

CHESS AND CHESS CLOCK FORTRESS OF ZORLAC (#36)

(#7) Six levels. All the legal moves includ- A super fast game in which you are the

ing castling and enpassant. Keeps a sepa- commander of a fleet of spaceships. Your

rate record of plays made for easy reference. mission is to rid the galaxy of the dreaded

Play another opponent or match wits with alien, ZORLAC.

the computer.

BACKGAMMON AND DICE (#8) ATOR THE ABC GATOR (#33)

A perfect blend of chance and skill. Uses Designed to teach recognition and sequence

machine code to choose its moves. Full of the alphabet. Combines computer

game including graphics board, rolling dice, instruction, music and video games,
and double cube. Play the computer or
another opponent.

THE CUBE GAME (#9) The cube SPACE RAIDERS, BOMBER

can be displayed in three views: (1) Solid; (#5) Timex/Sinclair version of the popular

(2) Two-Dimensional (unfolded); and (3) arcade games full of bombs and rockets

See-thru cube (3-D). You start with the and collisions with skyscrapers,

cube solved, set it up any way you like, or
pick up from a previous session.

REAL ESTATE INVESTMENT FROGGER (#37) Plays like the

ANALYSIS (#30) Two different invest- arcade game. Hop the frog over traffic,

ment strategies. The first selection allows snakes, crocodiles, and treacherous diving

the user to choose between renting or buy- turtles before time runs out.

ing. The second selection consists of a

detailed analysis of the rental investment

property.

Sinclaiif the company that invented the world’s
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You can play games that challenge you, instead of
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Only Sinclair offers this special software savings.
Only ZX81 or Timex TS1000 owners are eligible.

The more you buy, the more you save.

A serious Sinclair software offer.

The first cassette you buy, you buy at normal
cost: $15.00. But every cassette thereafter, you get
at a savings.

The list below explains how much you save,
based on how much you buy. It couldn’t be easier.

You were smart to buy the ZX81 or the
TS1000. You’ll be even smarter to take us up on
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are 16K, which means you need the 16K Memory
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But don’t delay. This is a limited time software
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Just call our toll-free number and use your
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Have your MasterCard or VISA ready when call¬
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These numbers are for orders only.

If you simply want information, please don’t
call, write Sinclair Research, Ltd., 2 Sinclair
Plaza, Nashua, NH 03061.

(Sorry, no refunds on software. Defective
cassettes will be replaced.)

_ Call toll free

800-543-3000

Ad. code: Mail to: Sinclair Research, Ltd.

„ One Sinclair Plaza, Nashua, NH

B4SX 03061

Check the boxes of all □ Check or money order

cassettes you want at left. _ enclosed. _

Fill in the space beside total for your total payment

□ 1 cassette: $15.00 Plus Shipping/Handling $5.00

□ 2 cassettes: $25.00

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Sinclair

DEAR EDITOR

I need ZX/TS business soft¬
ware. I use four of them in four
stores — three as satellites and one
as a master file. Can anyone help
me locate general ledger, accounts
receivable, accounts payable, and
payroll ledger programs?

Also, I had a problem with my
ZX printer — the print faded and the
motor slowed on heavy graphics.

I solved this problem with a
12V, 4A power supply and a Radio
Shack variable voltage 1 1/2 A
voltage regulator IC. I built the
circuit shown on the IC package and
set the voltage at 9.8V regulated
to 1 1/2 A. My printer no longer
slows and my computer runs cooler.

Rodney Gowen, Oregon City, OR

SYNTAX (Feb., Mar.) classified ads
and new products sections carried
ads for business software. CED
sells a bookkeeping program (Mar.
Class Ads). Finance software pro¬
gram listings are available from
Grombacher (Feb. Class Ads). Banta
Software's electronic spreadsheet
program, Screen-Calc, may suit your
needs (Mar. New Products). Cash
Journal General Ledger program is
from DEC (Mar. Class Ads). Mernotech
also offers a spreadsheet program
called Memocalc (Feb. New Products).
Also, SYBER (1345 Diller Rd., Ocean
Springs, MS 39564, 601/875-3682)
has a Financial Manager program.
Mindware (15 Tech Circle, Natick,

MA 01760, 617/655-3388) also has
business programs. Write for de¬
tails on programs before you buy.
Companies won't make exchanges
unless the tape is defective. — Ed.

How are programs locked? I
don't understand how LIST command
can be turned off. Also, if you
have a program with saved DIM and
LET statements, how do you restart?
Do you GOTO the first statement or
some point later in the program?

Can you transfer a numeric
value like LET K=1000 to a string
like K$, and to a string slice like
K$ (4 TO 8)?

I have several subroutines that
I use a lot. Is it possible to
load one from tape and then load a
second without clearing the first?

Ronny Richardson, Chamblee, GA

First, you can't turn LIST off
easily, but you can render it less
useful by causing the display file
to malfunction. However, these
methods won't work against anyone
who understands them, so they find
limited use. Start programs with
saved arrays by going to a point
after the DIM statement. Re-execu¬
tion (RUNing or GOingTO a line
before the assignment) clears
stored data.

Use STR$ and VAL to change
numbers to numerals and back again.

Finally, you can't directly
load two programs from tape into
the computer. You can load the
first program and POKE it above
RAMTOP, then load the second pro¬
gram and POKE down the first.
Siriusware and Sinware sell pro¬
grams to do this. Also, see the
review of RAM-Drive (p.6) and the
listing for Z-Tool (p.2) in this
issue of SYNTAX. — Ed.

Does anyone have any suggestions
for the following problems? — Ed.

I recently bought and hooked up
a surplus keyboard to my ZX/TS. I
used characters from a magazine.
Where can I get custom keytops?

Earl Close, Ontario, Canada

I have a ZX81 with 64K RAM and
ZX Printer.. When saving programs
my recordings have developed a
click, click that ruins the save
when the printer is connected. Do
you have any solutions?

Michael Roberts, Des Moines, IA

12

INTGRCOMPUTCR IMG

HARDWARE AND SOFTWARE PACKAGES
MAKE THE MOST OF YOUR TIMEX SINCLAIR 1000

MEMOTECH PERIPHERALS

MEMORY EXPANSIONS

► 16K RAM # PL7002 $ 59.95

• 32K RAM # PL7003 $ 99.95

• 64K RAM # PL7004 $ 149.95

► HIGH RESOLUTION GRAPHICS (16K RAM)

# PL7007 $99.95

• PLUG-IN KEY BOARD # PL7011 $99.95

► CENTRONICS PARALLEL INTERFACE # PL7005

$ 74.95

► MEMOTECH RS232 INTERFACE # PL7006

$99.95

PRINTERS

► SEIKOSHA GP-100A PRINTER The revolutionary low-
cost dot matrix impact printer— Uses up to 9.5” paper

# PL7008 $349.00

• SEIKOSHA GP-250X PRINTER The most intelligent
programmable graphic printer— Uses up to 9.5” paper

# PL7009 $449.00

► PRINTER-INTERFACE CABLE # PL7010 $19.95

► MEMOCALC Software on plug-in EPROM cartridge—
Spread sheet analysis— I !o to 7000 numbers (when
used with 64K) # BS200C $59.95

EDUCATIONAL ADVENTURE
SERIES

► EDUVENTURE I Answer the questions encountered
in each classroom until you make it outside for RECESS
and the surprise that awaits you there. (Grade level K-3)

# ED3001 $12.95

► EDUVENTURE II Each new situation requires either
your ingenuity or knowledge (or both) to avoid being p"
sent to the principal’s office. (Grade level 4-6)

# ED3002 $12.95

► EDUVENTURE III Solve complex puzzles to outwit
your teacher and achieve the highest scores. (Grade
level 7-9) # ED3003 $12.95

► EDUVENTURE IV An agile mind and quick reflexes
will get you through this maze of mysterious situations-
to your DIPLOMA. (Grade level 10-12) # ED3004
$12.95

All programs use 16K RAM.

QSAVE A Hardware-Software Combination—
Allows a baud rate of 4000 to be achieved com¬
pared with only 250 on the normal SINCLAIR
ZX81— Loads and saves a full 16K in only 29
seconds— Works with 16K and 64K. # PL7001
$37.95

NEW products coming soon: Software on ROM/EPROM
CARTRIDGES— SOFTBOXtm- A software library which
can contain several ROM/EPROM programs. Plug in your
computer and instantly call any program from your
SOFTBOX — A full line of software and peripherals
for the "colorful ZX SPECTRUM/TIMEX
SINCLAIR 2000.

For more information, Free Brochure, and
Special Package Discount, write or call:

IC INTERCOMPUTER INC.

P.O. Box 90, Prudential Center
Boston, MA 02199 Tel: (617) 437-1190
Telex: 951141 COFAR

Phone Orders: 7 Days/w

Dealers and Distributors Inquiries Welcome

Mail to: Intercomputer, Inc., P.O. Box 90, Prudential Center,
Boston, MA 02199

QTY.

UNIT U.S. $

Shipping and Handling q qr

Printer y.yj

Shipping and Handling . Qr

Memotech Products and QSAVE T.yQ

Mass. Residents Tax 5 %

Total

□ Check □ Mastercard □ Visa

Account No. _

HOME MANAGEMENT

• BILL ORGANIZER Keeps track of bills, amounts due,
date due, finance charges, payments made, etc. Sum¬
marizes all data for tax purposes. # HM5001
$14.95

► CHECK BOOK Balances and maintains your
checkbook. Finds all checks written to one payee easily.
Add a printer and it will even write checks for you.

# HM5002 $14.95

► ADDRESS BOOK Store, update and retrieve names,
addresses, and phone numbers. With a printer attached,
it will print mailing labels, sorts entries alphabetically
by name, or by Zip Code. Only remember part of a
name? It will find records from incomplete informa¬
tion. Code the entries for special purposes, i.e.
Christmas Cards, Party Invitations, etc. # HM5003
$14.95

► OCCASION CALENDAR Keep track of birthdays, an¬
niversaries, meetings and special events. Have your
calendar appear on the screen at the touch of a key.

# HM5004 $14.95
All programs use 16K RAM.

ENTERTAINMENT

► MISSILE LAUNCHER Challenge the enemy by
destroying his ammunition stored in different locations.

# FG1002 $12.95

► KRAZY KONG A new version of the popular arcade
game. This program has all the features of the original
and is every bit as fast. # FG1013 $12.95

► GHOST HUNT Gobble your way through a maze of
Ghosts, Power Pills, etc., etc., very fast. # FG1014
$12.95

] • MAZE DRAG RACE Drive through a giant maze 9
times the size of the screen, watch out for other cars,
rocks, oil and ice. A really superb machine code
game. # FG1015 $12.95

► DEMOLISHER Design an intelligent strategy to
demolish a growing wall before it crushes you.

# FG1005 $12.95

► MCODER Compiles a BASIC program into machine
code— Extremely simple to use— Write and debug your
Basic programs— Enter the MCODER— the Basic pro¬
gram will be compiled into machine code as you
watch. # PT4001 $18.95

► RETURN FROM SPACE # FG1001 $12.95

* JEOPARDY # FG1003 $12.95

► VEGAS # FG1004 $12.95
►AIR ATTACK # FG1006 $12.95

► GUARD THE PRESIDENT # FG1007 $12.95
►SUBMARINE # FG1011 $12.95

► COMBO PACK I Contains Return From Space and
Missile Launcher # FG1008 $18.95

► COMBO PACK II Contains Vegas and Jeopardy

# FG1009 $18.95

► COMBO PACK III Contains Demolisher and Air Attack

# FG1010 $18.95

► COMBO PACK IV Contains Guard The President and
Submarine # FG1012 $18.95

All programs use 16K RAM.

Limited warranty— Defective Software will be replaced if returned within
30 days.— Memotech Products: 180 days— Seikosha Printer: 90 days

LIFE EXPECTANCY — 8K/16K

This program calculates your
life expectancy based on data you
input on habits and family history.

Enter Life Expectancy as listed
and RUN. Follow the directions on
the screen. If you make a mistake,
enter XX to restart. You'll get an
error code followed by a line num¬
ber. Subtract 10 from the line
number and GOTO the result to con¬
tinue with Life Expectancy.

Wilfried Eder, Fort Ashby, WV

By subtracting 10 and going back to
the previous line number, you can
continue instead of starting over
in the middle of program execution.
The method that allows this is an
input after a prompt and increment¬
ing in your program by 10.--Ed.

1 REM "LIFE EXPECTANCY CALCUL

ATOR"

10 PRINT "LIFE EXPECTANCY CALC
UL AT ION FOR ADULTS 20 TO 65 YRS ,
OF AGE"

20 PRINT

-30 PRINT "TYPE" " 1" "FOR YES, ""2
" "FOR NO, TO ANSWER QUESTIONS

4.0 LET A =72
46 PRINT

50 PRINT "ARE YOU MALE'?"

60 INPUT B

70 IF B=1 THEN LET A=A-3
S0 IF B=2 THEN LET A=A+4
82 CLS

64 PRINT "1=YES" , "2=NO"

66 PRINT

9© PRINT "DO YOU LIUE IN AN UR
BAN AREA (POPULATION >2 MILLI

ONJ ?"

100 INPUT B

110 IF B = 1 THEN LET A=A-2

111 IF B = 1 THEN GOTO 141

112 CLS

114 PRINT " i=YES" , "2=NO"

116 PRINT

120 IF 5=2 THEN PRINT "DO YOU L
IUE IN A TOWN (POPULATION <10, 000 >

-■>**

130 INPUT B

140 IF 6=1 THEN LET A=A+2
142 CLS
144 PRINT

150 PRINT "IF YOU WORK BEHIND A
DESK, TYPE “ "1" " j IF YOUR JOB RE
QUIRES REGULARHEAUY PHYSICAL LAB
OR, TYPE" "2"" . "

160 INPUT B

170 IF B=1 THEN LET A=A-3
180 IF B =2 THEN LET A=A+3
182 CLS
184 PRINT

190 PRINT "IF YOU EXERCISE STRE

NOUSLY MORE THAN 5 1/2 HR,SESSI©
NS/UK .TYPE ""2"".; IF YOU DO 2-3
^TIMES/WK.TYPE""!""; IF NOT AT AL

20© INPUT B

210 IF B=2 THEN LET A=A+4
220 IF B=1 THEN LET A=A+2
230 IF B=0 THEN LET A=A
232 CLS
234 PRINT

240 PRINT "TYPE" "l"" IF YOU LIUE
WITH A SPOUSE OR FRIEND. IE NOT,
TYPE" "2"" . "

250 INPUT B

26© IF B = 1 THEN LET A=A+5
262 CLS
264 PRINT

270 PRINT "IF YOU LIUE ALONE, TV
PE NUMBER OF DECADES YOU HAU

2"'ClVED' Urr'riQuT 'Oi HERS axNCc 'YOU
REACHED AGE25 . OTHERWISE TYPE""0

280 INPUT B
290 LET A=A— B
292 CLS

294 PRINT "1=YES" , **2=NO"

296 PRINT

300 PRINT "DO YOU SLEEP MORE TH
AN 10 HOURS A NIGHT?"

310 INPUT B

320 IF B=1 THEN LET A=A-4
322 CLS

324 PRINT
330 PRINT
GRESSIUE,
”1"" . "

332 PRINT
340 PRINT

■IF YOU ARE INTENSE, A
EASILY ANGERED, TYPE"

IF YOU ARE EASY GOIN

G, RELAXED, A ""FOLLOWER"" , TYPE" ”2
350 INPUT B

3S0 IF B = 1 THEN LET A=A-3
370 IF B=2 THEN LET A=R+3
372 CLS
374 PRINT

380 PRINT "IF YOU ARE HAPPY , TYP
E”"1"";IF NOT TYPE" "2""."

390 INPUT B

400 IF 6 = 1 THEN LET A=A + 1
410 IF B=2 THEN LET A=A-2
412 CLS

414 PRINT ” 1=YES" , "2=NO"

416 PRINT

420 PRINT “DID YOU HAUE A SPEED
ING TICKET WITHIN THE LAST YEA

R?"

430 INPUT B

440 IF B=1 THEN LET A=A-1
442 CLS

444 PRINT "1=YES* , "2=NO"

446 PRINT

450 PRINT "DO YOU EARN MOKE THA
N 50,000/YR?”

460 INPUT B

470 IF B=1 THEN LET A=A-2
472 CLS
‘W*. HKJ.NI

”..IF YOU FINISHED COLL
E6E..TYPE ! ; IF GRADUATE SCHOOL

,TYPE""2**"; IF NEITHER, TYPE'”'©

490 INPUT B
500 LET A=A+B
512 CLS
514 PRINT

S20PRXNT "IF YOU ARE 65 OR OUE
R AND STILL WORKING , TYPE"" 1"": OT
HERWISE TYPE ""2""C"

14

530 INPUT 8

540 IF B=1 THEN LET 0=0+3
542 CLS
544. PRINT

INT "IF RNY OF YOUR GROND
PRRFNIS LIUED TO BE 85 OR

OUER^TYPE'* **£" " XP &L.L 4- LXUfED TO
BEe800OR OUER TYPE""6*",IF NOT T

560 INPUT B
570 LET 0=0+8
572 CLS

574- PRINT ** 1 =YES " , "2 =NO "

576 PRINT

^gSOPRINT "DID EITHER OF YOUR P
ORENTS DTE OF STROKE/HEORT OTT
OCK BEFORE OGE 507”

500 INPUT B

f gg IF B = 1 THEN LET 0=0-4.

602 CLS

ISf SSItil ** 1 =YES" , "2=NO"

606 PRINT

610 PRINT "HOUE ONY OF YOUR POR
ENTS OR BROTHERS /SISTERS UN

DER OGE 50 HOD O HEORT CONDITI
ON , CONCER OR CHILDHOOD DIOBETES7

620 INPUT B

630 IF B=1 THEN LET 0=0-3
632 CLS
634. PRINT

t®40 PRINT "IF YOU SMOKE CIGORET
IF MORE THOM 2 PRC
K.6 /DRY.; TYPE” "6" "IF 1-2 PflCKS/DfiV
}. TYPE" "3" " IF 1/2 — 1 POCK/ DOY . TYPE
” "0" ” IF YOU DO NOT SMOKE."

65© INPUT B
660 LET 0=0 -B
662 CLS

664- PRINT "1=YES", "2=NO"

666 PRINT

^ 7 ©PRINT "DO YOU DRINK THE EOU
IUOLENT OF 1/4 BOTTLE LIQUOR O
DRY?"'

680 INPUT B

690 IF B=1 THEN LET 0=0-1
692 CLS
694 PRINT

700 PRINT "IF YOU ORE OUERUEIGH
T,TYPE""8""IF BY >50 LBS. TYPE" "4
IF BY 30 TO 50 LBS .TYPE" "2” " IF
,,BY 10 TO 3© LBS. OTHERWISE TYPE
© .

710 INPUT B
72© LET 0=0 -B
722 CLS
724 PRINT

730 PRINT "IF YOU ORE MOLE OND
HOUE ON ANNUAL CHECK-UP OR

^FYOURRE FEMOLE OND SEE O GY

NECOLOG 1ST ANNUALLY . TYPE " "2" " , O
THERUISE TYPE
740 INPUT B
75© LET 0=0 +B
752 CLS
754 PRINT

76© PRINT "TYPE" “2" "IF YOU ORE
BETWEEN 30-40; IF BETWEEN 40

-5©.; ""4"" BETWEEN 50-60.; ** " 5” " IF
>70"

770 INPUT B
780 LET 0=0+6
782 CLS
784 PRINT

790 PRINT "YOUR LIFE EXPECTANCY’
IS : ".; O; " YEORS"

80© STOP

SYNTACTIC SUM: 57181, 8K ROM

PROGRAM IMPROVEMENTS/REFINEMENTS

Running Syntactic Sum with Var¬
iables (SQ Winter '82) in slow wipes
out the program you are checking.

To prevent this, add a FAST call to
the Syntactic Sum program. First,
lower RAMTOP with: POKE 16388,200

POKE 16389,127
NEW

Change Syntactic Sum Program to:

1 FOR L =32717 TO 32766

2 POKE L , P (L-32716J

3 NEXT L

4 LET L =327 14

5 POKE L, 205

6 LET L=L+1

7 POKE L, 35

8 LET L =L +1

9 POKE L, 15

1© REM THE REST OF THE PROGRAM
IS MUCH THE SOME.

14 PRINT " SYNTACTIC SUM WITH U
ORIOBLES IS NOW SAFELY TUCKED RW
OY OBOUE RAMTOP"

_ 15 PRINT , , " TO OBTAIN O SYNTfi

LTIC SUM, ENTER "“PRINT USR 3271

17 STOP

18 SPUE "SUM"

19 GOTO 1

SYNTACTIC SUM: 19091, 8K ROM

Patrick O'Connor, Manitoba, Canada

HEAR THE POWER OF YOUR
TIMEX/SINCLAIRtm

IT'S BEEN SAID THE FUTURE BELONGS TO THOSE WHO UNDERSTAND COM-
ThVmTALK TTOYoJRUE' WHAT BETTER WAY 70 00 THIS THAN BY HAVING

NOW YOU CAN. QUICKLY , SIMPLY, ECONOMICALLY.

wrrct

HEAR THE POWER

far ref

FEATURES:

• PROGRAMMABLE SPEECH AND
SOUND EFFECTS.

• AMPLIFIER AND VOLUME CONTROL.

• "PIGGY BACK” EXPANDABILITY.

• SPEAKER OUTPUT JACK.

• POWER INPUT JACK FOR EXPANDED
SYSTEM OPERATION.

• PROFESSIONALLY WRITTEN SOFT
WARE EXAMPLES INCLUDED ON
CASSETTE TAPE.

• COMPLETE DETAILED INSTRUCTIONS
ARE PROVIDED BEING BOTH EDUCA¬
TIONAL AND INFORMATIVE.

• COMPACT, RELIABLE AND SAFE.

• ALL FOR $89.95

LET THE POWER OF YOUR SINCLAIR ZX80/81 TM OR TIMEX SINCLAIR 1000 TM
SPEAK FOR YOU NOW. THROUGH R.I.S.T. COMPUTER COMPONENTS INC THE
PARROT TM - YOUR ZX80/81 OR TS1000 CAN SPEAK.. .CLEARLY, CONSISELY
AND WITHOUT LIMIT.

R.I.S.T. HAS DEVELOPED A STATE OF THE ART VOICE SYNTHESIS MODULE
YOU PLUG IN. THE PARROT TM UTILIZES ALLOPHONE CONCATENATION TO
SYNTHESIZE SPEECH, WITH LIMITLESS VOCABULARY. SENTENCES, AND ANY
ENGLISH LANGUAGE WORD CAN BE CREATED.

BEST OF ALL, THE PARROT TM IS AFFORDABLE. FOR $89.95, YOUR ZX80/81 OR
TSWOO_CAN GIVEJOU THE VOICE OF THE FUTURE. . . TOD A Y!

SEND $89.95 PLUS $4.00 SH/HD TO:

RIST INC. »P.O. BOX 499 • FT. HAMILTON STATION, BROOKLYN, N.Y. 11209
N.Y. STATE RESIDENTS ADD 8.25% TAX ($7.40), CANADIAN ORDERS SEND TO-
INTEGRATED DATA SYSTEMS • 11 BRIGHTON AVE. • TORONTO CANADA M4M 1P3
MY COMPUTER IS: □ ZX80 □ ZX81 DTS1000

□ 9V,2 Amp POWER SUPPLY (OPTIONAL) $24.95 ea. (REQUIRED FOR ZX80 OR EX¬
PANDED SYSTEM OPERATION)

FOR ORDERS OUTSIDE U.S. & CANADA PLEASE SEND CHECK PAYABLE IN U S
DOLLARS

15

GREEN AND BLACK AND READ ALL OVER

My nine-inch black and white
low-res monitor smears characters
because of its poor resolution.

Then I saw an ad for a 9x4 1/2"
green and black monitor for $75
from John Meshna in Lynn, MA.
Looking at the specs and schematic
convinced me this high-res monitor
provides enough gain to connect to
a ZX/TS with no interface.

1 find the screen presentation
a major improvement. Still, after
adjusting it, my 9" monitor shows
squares as rectangles — not a prob¬
lem for text, but graphics are too
wide. At maximum height and mini¬
mum width you'll get 60x85mm
"squares" using X=40:

2 INPUT X

5 FOR U = 1 TO X
10 FOR 1=1 TO X
2® PLOT T,xJ
30 NEXT I
4-0 NEXT U

SYNTACTIC SUM: 3837, SK ROM

All you need is a monitor and a

TIMEX 1000
$59.95 *

BUISiTESS

Budgeting ••••••«•

... 59.95

Inventory Control

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Financial Analyzer

.. 39.95

GAMES

Leap Frog . .

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Star Voyage .

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Fungaloids . .

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Chess ............

Snakebite . .

• • V7*/7

• • Cq q r

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•• 39.95

UTILITY

Assembler +

....$9.95

Compiler ••*••••••

....$9.95

Graph . * .

....$9.95

Q— Save •••...call

for price

AND MANY MORE EXCITING
PROGRAMS 1

♦You Tiave to buy 3 software
from us*

CALL FOR FREE CATALOG

DISCOUNT
SOFTWARE, INC.

320 E. 59th St. NY, NY 10022
Tel: (21 2)436-0980

length of coax with a BNC connector
on one end. At the other end, bare
about 1/4" of the center wire and
make a l/2"-long pigtail of shield.

Remove the 5 screws from the
bottom cover of your computer (look
under the rubber feet). Remove the
bottom cover and the two screws
from the board. Remove top cover
from board. You'll see a small
metal box (modulator) on the compo¬
nent side of the board with three
wire leads to the board.

Solder the coax center lead to
the wire lead closest to the board
edge. Solder the pigtail to the
lower edge of the metal box.

With a knife, cut the top cover
of the computer so the coax cable
can pass through. Reassemble your
ZX/TS computer.

For 9" monitor only, (12" model
works as-is) remove the cover and
find the control names etched along
the circuit board edge. With a
screwdriver fully rotate three con¬
trols: gain, counter-clockwise;

height, clockwise; ABC, clockwise.
Using a plastic hex-head alignment
tool, set the width to minimum. Do
not adjust the other controls. Put
the metal cover back on.

Connect the leads and go green.

Leo Morgan, Peabody, MA

We tried 2 Meshna monitors, the 9"
No. SPL-310-24 and the 12" MOT-12
(Motorola No. J12VP102-Z07) . $75

each from John Meshna, Jr., Inc.,
POB 62, Lynn, MA 01904. Call Doug
at 617/595-2275. You'll need a
Belden 17504 line cord for the 9"
monitor. Disregard the letter
about reverse video — you'll get
black letters on green. Use the
12"-type for normal perspective.

Both surplus monitors use 75-
Ohm input resistors, but the ZX/TS
drives them. Our Zenith ZVM-121
monitor also runs with this video
connection if set at max. contrast
and black level. Some computers
may drive the modulator and monitor
simultaneously — ours won't. — KO

16

Creations Inc. — d/b/a Computer Discount Services

accounts

Ybur own PERSONAL OR SMALL BUSINESS ac¬
counting system. Contains refinements not usually
found in this type of program. ‘200 Transaction file”
can be SEARCHED, PRINTED or DISPLAYED. This
program has been throughly tested, and improved
through extensive use.

ORDER No. 03-1022

AUTOFILE

An ELECTRONIC FILING SYSTEM that can be used
for ANY type of data. Set up your own DATA-BASES
with this easy to use, menu-driven program with
AUTO-SEARCH facility.

ORDER No. 03-1021

BREAKOUT

Fast MACHINE CODE arcade-type game. If you
havenl tried THIS version, you haven’t played
‘BREAKOUT on the ZX81/TS1000.

ORDER No. 03-4028

Enables you to play any tune through your T.V.
speaker, your cassette recorder or through an A.M.
radio. With ‘COMPOSER’ you can control the dura¬
tion of each note. And you can save your song on

ORDER No. 03-3012 11995

G R A FIX

Draw and store complex images. Permits you to
create, mix, and save your own screen artwork. Ybu
can mix graphics created with GRAFIX into another
program. By itself or on tape. This program is a
“must” for the CREATIVE PROGRAMMER.* 4 jqc
ORDER No. 03-6005 * 1495

'M’-Coder™

Now you can write MACHINE CODE PROGRAMS on
your ZX81 with ’M’-Coder. The first true MACHINE
CODE COMPILER for the ZX81 Computer. Simply
write your new program in BASIC, (or load an —
-=EXISTING PROGRAM), press A-KEY and
‘M’-Coder will automatically compile it into
MACHINE CODE for you. ‘M’-Coder codes 99.9% of
all BASIC. Give all your programs that SUPER-FAST
professional look. Order 'M’-Coder NOW to revolu¬
tionize your programming. Once you try ‘M’-Coder
you’ll never write basic programs again! t ^n95
ORDER No. 03-5201 *1™

PUCKMAN

Superb fast moving MACHINE-CODE fun. Have an
exciting time playing this EXCELLENT version of the
popular arcade game. *4 woe

ORDER No. 03-4027 $l49a

TOUCH-A-MATIC’1

$995

/ \

QSave

SINCLAIR

TM

\ /

- —1

POWER
AT YOUR
FINGER TIPS!

ORDER No. 01-0007

KOPAICS “TOUCH-A-MATIC" gives you the power to
type more accurately and faster. It requires NO
WIRES, NO SOLDERING. It’s as easy as removing
the adhesive backing and pressing it into position.

LOADS & SAVES 16 K file in 26 seconds instead of
7 minutes! Cleans up signal for a cleaner load.

• STRONGER, SHARPER DIGITAL SIGNAL

• CLEANER, FILTERED POWER • ENCODES YOUR
PROGRAM AND/OR DATE • Save time/Save 1

• Baud rate increases from 250 to over <

must for all ZX81 /TS1000 owners. TM » onnc
ORDER No. 04-1000 SoSJ95

NAME

Sub-lbtal

s

ADDRESS

Add tales tax

$

CITY STATE ZIP

Packing ft Shipping
(See Chart)

$

f 1 r°m $25.00 to $29.99 add $3.45
to $9.99 to $14.99 add $2.00 from $30.00 to $39.99 add $3.70
P * ,rom 515.00 to $1 9.99 add $2.50 from $40.00 to $49.99 add $3.95

V* from $20.00 to $24.99 add $2.85 over $50.00 add $4.25

Total amount
enclosed or to
be charged to
my credit card

$

CHARGE

visa| 1

MASTER I — I

□

□

□

□

□

□

□

□

□

□

INTERBANK NO

EXR DATE

MASTER I— I | _ | | _ | _ 1 I I

CARD 1 — 1£!22 - MO YEAR

MELBOURNE HOUSE SOFTWARE Cm v

18

BLIPPO

WITHOUT SPEAKER

$24.95

WITH SPEAKER

EXPANSION

CONNECTOR

ZEBRA LIGHT PEN

• Fun to experiment in BASIC

• Complete package includes:
-Light Pen

-Computer Intertace Module
-Demo Program Listings

• Assembled & Tested

ORDER C109 $24.95

Add amazing sound effects to your games.
Easy to program in BASIC.

Wide frequency range.

Assembled and tested, with Demo software.

AMAZING
SOUND EFFECTS

SPEAKER

MODULE

SUPER GAMES 033 »

mmm

mmu\m

PROTOTYPING?

EXPERIMENTING?

C111

UNIVERSAL
PATTERN FOR
IC’S, CAPS,
ETC.

MONSTER QQ
MAZE | I-

CH3 ft

S14.95 II “

Cm BYTING DEEPER INTO YOUR TS1000 .
C103 NOT JUST 30 PROGRAMS FOR THE ZX81
C104 COMPLETE T/S BASIC COURSE .

Cl 12

PIGGY BACK
RAM OR OTHER
PERIPHERALS

C110

ALL SIGNALS
LABELED

GOBBLE

MAN

Cl 1 4

$14.95

C110 Keyed & Labeled ZX Connector $5.95
C111 Universal Prototyping Board . . $9.95
Cl 1 2 Expansion Connector . $2.50

Cl 05 UNDERSTANDING YOUR ZX81 ROM ... .
C106 MACHINE LANGUAGE MADE SIMPLE . . .
C107 THE INS & OUTS OF THE TS1000 & ZX81

IMPORTANT! All ZEBRA products
can be piggybacked in any order.
Your memory, printer, etc. will plug
into the last one.

Tech info & ny state call Order Toll Free
(212) 296-2385 9-5 EST 800-221-0916

15 DAY MONEY BACK
GUARANTEE ON ALL
ZEBRA HARDWARE.

ADD $2.00 PER ORDER
FOR SHIPPING.

WE ACCEPT VISA, MASTERCARD,
CHECKS, M.O.

C.O.D. ADD $3.00 EXTRA.

NY RESIDENTS ADD SALES TAX.
OVERSEAS, FPO, APO, ADD 10%
DEALER DISCOUNTS AVAILABLE.

ZEBRA SYSTEMS, INC

78-06 Jamaica Avenue, Woodhaven, New York 11421

OFFICE MANAGER — 8K/16K

F=Finish print line
D=Data input (search mode)

Office Manager creates and
stores three separate files: a
phone directory, report file (each
150 lines max.)/ and memo file (20
lines max.).

You can move freely from one
file to another without reloading
from tape or disturbing data in any
file. To switch files, type END,
ENTER, and the menu reappears.
Select the new mode and ENTER.

When using the report or memo
option, you can only enter one line
at a time. Type in each line and
ENTER after each one.

Enter phone numbers last name
first. You can search for entries
by last name or initial. Report
and memo options cannot search.

If you get an error 5/(line
number) when viewing files, the
screen is full. Hit CONT to go on.
GOTO 5 returns you to main menu.

You can save file information
on tape or print it out.

Print option asks which lines
you want to print. If you want to
print only a portion of a file,
find the starting and ending line
numbers by selecting display op¬
tions 3, 6 or 9 (depending on the
file). The screen displays the
start and end slots of each file.
Each line of your file occupies 1
slot. Calculate your start and end
line slots. Enter these numbers
when you return to print option —
your ZX/TS prints just those lines.

First time you load the program
dimension the files by entering:

DIM F$(321,31) then, enter GOTO 1.

Inverse graphics are:

20 space Office space Manager 7
spaces T/S space 1000 space
2403 11 graphic sevens
2709 18 graphic sevens
2720 space File space Slot 2 spaces
Variables

F$=File string array
C=Menu choice
Z$=Any input or choice
L=Line counter; subscript
S=Start print line

Joe Glass, Cinnaminson, NJ

1 REM OFFICE MANAGER USES AN
ARRAY (F*i 321 BY 31. THIS MUST
BE ENTERED BY DIRECT COMMAND.

5 FAST
18 CLS
IS PRINT

25 PRINT

30 PRINT TAB 5; "1 OPEN PHONE B

OQK"

35 PRINT TAB 5; "2 SEARCH PHONE
BOOK”

4-0 PRINT TAB 5; ”3 ALTER PHONE

BOOK"

4-5 PRINT

30 PRINT TAB 5;. "4- OPEN REPORT

FILE"

55 PRINT TAB 5; “5 UIEU REPORT
FILE"

60 PRINT TAB 5; ”6 ADD TO REPOR

T “

55 PRINT

70 PRINT TAB 5; "7 OPEN MEMO FI

LE"

75 PRINT TAB 5; "8 UIEU MEMO ®I

S3 PRINT TAB 5; ”9 RLTER MEMO F

XL.E"

©5 PRINT

90 PRINT TAB 4-; "10 PRINT FILE*'
95 PRINT TAB 4.; "11 SPUE ALL FI
LES" TAB 4.; *'12 UIEU ALL FILES"
100 PRINT RT 21,0J "ENTER CHOICE

105 INPUT C

110 IF C<1 OR 012 THEN GOTO 10

0

15© GOSUB 2©0©

150 IF C = 1 OR C =3 THEN GOSUB 21

©0

155 IF C=4- OR C=5 OR C=6 THEN G
OSUB 2200

170 IF C =7 OR C =8 OR C=9 THEN G
OSUB 2300

175 IF C = 10 THEN GOTO 24-00
180 IF C=ll THEN GOTO 2500
185 IF C=2 THEN GOTO 2700

190 IF C =3 OR C =6 OR C=9 THEN G
OTO 2800

191 IF C = 12 THEN GOTO 290©

195 PRINT "TYPE ""END"“ TO EXIT

280 IF C = 1 OR C =4 OR C=7 THEN I
NPUT F$(L)

205 IF F$CL,1 TO 3) ="END" THEN
GOTO 2600
210 PRINT FJ CL)

215 LET L=L + 1

220 IF C=1 AND L>150 QR C=3 AND
L > 150 THEN GOTO 2600
225 IF C =4- AND L >300 OR C=S AND
L >300 OR C=6 AND L>300 THEN GOT
O 2600

230 IF C =7 AND L >320 OR C=S AND
L >320 OR 0=9 AND L>320 THEN GOT
O 2600
235 GOTO 200
250 STOP

300 REM SUBROUTES FOLLOU
2800 CLS
2005 PRINT

20

£010 RETURN
2100 LET L = 1
2105 RETURN
2200 LET L=1F1
2205 RETURN
2300 LET L =30 1
2305 RETURN

2400 GOSUB 2000

2401 PRINT " PARAMETERS : *'

2402 PRINT

2403 PRINT ” PHONE = 1 TO ISO" ; TAB
0; "REPORT = 151 TO 300” ; TAB 0;”M

EMO= 301 TC 320"

2404 PRINT

2405 PRINT "STARTING LINE?"

2410 INPUT S

2415 PRINT "FINISH LINE?"

2420 INPUT F

2425 PRINT RT 10,0; "PRINTING FIL
E SLOTS:"; TAB ©; S; ” TO ”;F
2430 LET L =S

2435 LPRINT F$<L,1 TO 31)

2440 LET L=L+1

2443 IF L=F THEN GOTO 2600

2445 GOTO 2435

250© GOSUB 2000

2505 PRINT "ALL FILES WILL BE SR
UED IN THE STANDARD SINCLAIR FO
RMAT . "

SB 10 PRINT

SB 15 PRINT "SIMPLY PRESS ENTER • *

£5X6 INPUT Z$

£518 S RUE -FILES**

£52© GOTO 1

260© PRINT RT 21..©; “KEY ENTER TO
CONTINUE*1
2605 INPUT Z$

261© GOTO 1©

2 TO© GOSUB 200©

27©5 PRINT “ENTER SEARCH DATA**
270^ PRINT ..wammmmmmmammmammmmammktr

271© INPUT Z$

2711 LET D=LEN Z$

2715 LET L = 1

272©^IF^^L^TO D ) =Z$ THEN PR IN

2725 LET L=L+1

273© IF L > 15© THEN GOTO 2SO©

2735 GOTO 272©

2S©© GOSUB 20©0

2805 IF F*(L,1 TO 3) ="ENDM THEN
GOTO 2820
281© LET L =L 4* 1
2815 GOTO 2S©5

2820 PRINT “FILE ENDS RT SLOT: 11
; L

2825 PRINT -ENTER DRTR--END TO E

xrr-

2830 INPUT F$(L)

2835 IF F$ (L » 1 TO 3) =,iENDi* THEN

GOTO 2600

284.0 PRINT F$TL>

284.5 LET L=L + 1

285© IF C=3 RND L > 15© THEN GOTO

10

2855 IF C=S RND L>38© THEN GOTO

10

2360 IF C=9 AND L>320 THEN GOTO

X©

3365 GOTO 2330
3*300 GOSUB 200©

3005 FOR L=1 TO 32©

2910 PRINT F$ (L)

2915 NEXT L
3920 GOTO 2600

3000 REM OFFICE MANAGER WAS WRIT
TEN BY JOSEPH GLASS. ALL RIGHTS
RESERVED. CO 1983
SYNTACTIC SUM: 30199, SK ROM

CLASSIFIED ADS

Reach almost 10,000 ZX/TS users for
just $9/line in SYNTAX classified
ads. Send your copy, typed 35
char. /line (exactly as you want it
to appear) with a check, (NO CREDIT
CARDS OR PHONE ORDERS, please) to
ar r ive by the 15th of any month.

You ad will appear in the next
month's issue. To repeat an ad,
send another ad order with check by
the 15th. We take no responsi¬
bility for advertisers. Include
phone number whether or not the
number appears in ad copy. SYNTAX
Classified Ads, RD2 , Box 457,
Harvard, MA 01451.

*

* FREE NEWSLETTER 8 pages
******* Send SASE to Friendly, Box

* 122, Wallingford, PA 19086

*

******T IMEBLASTER s******
A 1.7K M/L ARCADE GAME FOR SERIOUS
Players. For ZX81/TS1000 (16K RAM)
Send $12.95 To: CALLIOPE SOFTWARE.
4130 Coe Dr NE , Albuq. , NM 87110

BRONZE STAR SOFTWARE ANNOUNCES: ZT
Can you help the little creature to
find his way home, a different game
every time. Tape $7 16K required

PO BOX 265, Chicago Ridge, IL 60415

$3.50 PPD BUDGET/FINANCE SOFTWARE
PRGM LISTING with line for line
explanation. Educational, useful

application prgm for beginner,
continues where ZX81/TS1000 manual
leaves off. 8K/16K RAM. GROMBACHER
4564 QUEENS WAY, SIERRA VISTA AZ.
85635

ELECTRONIC SPREADSHEET with PLOTTER
12.95 ! ISASE gets ca t. & ! ! FREE ! ! g if t !
EZRA/EZRA, Bx 5222 , SanDiego CA 92105

Programs in BASIC to USE-EXPERIMENT
WITH-LEARN HOW IT IS DONE-MODI FY TO
SUIT YOUR SPECIAL NEEDS. D LIPINSKI
SOFTWARE ,2737 Susquehanna Rd,Roslyn
PA 19001 INFO FREE Dealers Welcome.

21

INTEGER BASIC COMPILER. 16K RAM-$12
Info? Write To: ZX81 Programs, 106B
ANTOINETTE CT., CH'VILLE, VA 22933.

DRIVE A VIDEO MONITOR WITH YOUR ZX-
81. Our DVC-2 kit provides direct
video and REVERSE VIDEO. Kit $20.45,
assembled $31. 45. Get super sharp
character definition with our 12"
B&W video monitor ,$98. 45. Random
Access, Box 41770S , Phoenix, AZ 85080

******** jh_2 LEDGER SYSTEM ********
ONE PROGRAM THAT LETS YOU STORE,
Graph And Recall All Your Bookkeep¬
ing Data. Will Store 300 Entries
Across 20 Columns. Instructions
Included. 16K Required. Send
$21.95 For Cassette To: M-Z SYSTEMS
1003 S. CLIFF, PORTLAND, TX 78374.

** UNLOCK SELF-STARTING PROGRAMS **
Allows LIST, SAVE, mods. 8ROM-16RAM
Life-Guar. $13.95 ppd. N.J. Gipson,
43 Imperial RD#6, Coates, PA 19320

MARBLES . MAZES AND SINK HOLES
A simple, non-destructive game of
skill and logic for all members of
the family. 15 levels of play, from
very easy to extremely difficult,
each with 4 different screen types
giving 60 full-screen displays.
Score displayed as time taken; auto
clock enforces time limit; auto run
and return to basic features. 100%
machine code program for ZX81 or
TS1000 with 16k RAM. Cassette $10
CHARLES DRURY, 40 WESTGATE RD #5.
CHESTNUT HILL , MA 02167

* * 16K RAM PACK GOT YOU DOWN? * *
Loading And Saving Noise Completely
Eliminated. Send Your Working RAM
Pack With $9.95 To: DAVE FREY, 619
AVIGNON DR., MELBOURNE, FL 32935

** CHARACTER SET GRAPHICS KIT **
Visually spaced, large format let¬
ters, numerals & punctuation. A
fast, easy to use system that gives
professional look to display.

SASE and check for $3.00 to:

Vidiom, Dept. 'T, PO Box 3118
Wayland Sq. , Providence, RI, 02906

//2K Programs from 2-BIT SOFTWARE//
//4 Adventure Games $9.95. Free//
//color catalog. Emerson & Stern//
//Dept. SY3, Box 2036, Del Mar,//
//CA 92014 (619) 481-3629 Orders//

*The "GETITALLTOGETHER" Clip $3.95*
Better 16K/ZX81 integrity, Less Lost
*" ITS" Rt.6 BOX765 Norman, Ok 73071*

!!!!! ZX81 - TS/1000 SOFTWARE !!!!!
ENTERTAINMENT - EDUCATION
GAMES - TEXT ADVENTURES - BOOKS
Send for Catalog & FREE game
Software Unlimited
PO Box 147 Grandview, MO 64030

LEARN DATA HANDLING TECHNIQUES with
ZX Data Finder, a versatile file
manager for 16K ZX81s. All routines
thoroughly explained. Concepts and
dozens of memory saving methods are
analyzed. List/text $9.95-free info
Tom Woods Box 64 Jefferson, NH 03583

***** METAGRAPHICS *****
USE THE FULL GRAPHICS POTENTIAL OF
Your ZX81/TS1000 (16K RAM). 2048
CHARACTERS! 1 BASIC + M/C Gives You
Total Artistic Control. Send $12.95
******** CALLIOPE SOFTWARE ********
4130 COE DR. NE, ALBUQ. , NM 87110

*** STOCK MARKET CASSETTE (16K) ***
PORTFOLIO MANAGEMENT: MAINTAINS
Records Of Securities You've Bought
And Sold. Analysis Provides 12 Dif¬
ferent Listings (Gains, Loss, Dates,
Yields, Etc.) Holds 100+ Securities
Side 2-Program For Market Forecast.
$9.95 To TELETEK CO; #15 CENTRAL WY
SUITE 169; KIRKLAND, WA, 98033

** ADD MEMORY THAT WON'T FORGET! **

* Read the review in SQ(Winter) *

* Kit $31:90 SASE details: HUNTER *
*1630 Forest Hills Okemos MI 48864*
*Read RADIO-ELECTRONICS June/Julv*

$$$ DON'T Buy This Software !!!
-Unless you want the BEST deal for
16K '81s!! 6PAC has: FORTH, BUDGET,
SPREADSHEET, INVENTORY, FILE,& TIME
PLAN programs. SALE PRICE $27.95!!!
SofTek, Box 4232 Santa Fe, NM 87502

22

COMPUSETTE is a C-10 cassette which
is especially designed for micro¬
computer application by TAPEMASTERS
25 for $20.00 100 for $70.00

COMPUSETTE+ is a C— 20 cassette
25 for $22.00 100 for $77.00

VISA MASTERCARD C.O.D.

TX 214-349-0081**OTHER 800-527-1227
10% discount for Check with Order
P. 0. Box 38651*Dallasf Texas 75238
FREIGHT PREPAID *DEFECTIVES REPLACED

OUR POLICY ON CONTRIBUTED MATERIAL

SYNTAX invites you to express opinions related to any Sinclair computer or
peripheral, or the newsletter. We will print, as space allows, letters discussing items
of general interest. Of course, we reserve the right to edit letters to a suitable length
and to refuse publication of any material.

We welcome program listings for all levels of expertise and written in either
Sinclair BASIC or Z80 machine code. Programs can be for any fun or useful
purpose. We will test run each one before publishing it, but we will not debug
programs; please send only workable listings. Programs submitted on cassette can be
tested more quickly and with less chance of error.

In return for your listing, we will pay you a token fee of $2.00 per program we
use. This payment gives us the nonexclusive right to use that program in any form
world-wide. This means you can still use it, sell it, or give it away, and so can we. ’

We will consider submissions of news and hardware or software reviews. Please
keep articles short (350-400 words). Again, we reserve the right to edit accepted
articles to a suitable length. We will pay 7 cents per 6 characters, including spaces
and punctuation, for accepted articles.

When you send in programs for possible publication in SYNTAX, please
include the following information:

• How to operate the program, including what to input if it does not contain
prompts.

• Whether you can run the program over again and how.

• How to exit the program.

• The Syntactic Sum (program published in Feb. 81 and Jun. 81; send SASE
for a free copy).

• What RAM size program requires.

• What ROM program uses.

We pay for this explanatory text at the same rate as for articles in addition to
payment for the program itself.

If you want us to return your original program listing or article, please include
a self-addressed, stamped envelope. Otherwise, we cannot return submitted material.

Eliza for 16K Timex/Sinclair.

From MIT, the celebrated Simulation
of Machine Inteligence. Cassette
only $14.95. Sinclair Softech
P.O. Box 82A, Sinclair Wy 82334.

***f or TIMEX/SINCLAIR computers***
NEW! "IN-LINE LOAD MONITOR"; Load
software like a pro! Guaranteed.

Compact. Detailed instruct. - 12.95

LOST IN SPACE - 11.95

UNIVERSAL INVENTORY FILE - 16.95

UNIVERSAL MAILING LIST - 10.95

UNIVERSAL COIN COLLECTION - 10.95

UNIVERSAL STAMP COLLECTION - 10.95

UNIVERSAL RECORD ALBUM COLL - 10.95

Each program on cassette + manual.
8KROM, 16KRAM. $1.50 S&H perorder.
$1 for cat. (Refunded with order.)
N.J. 6% tax. WANTED :Retailers, Agent
and Dealers. M.C. HOFFMAN CO., DEPT.
SX4 , PO BOX 117, OAKLAND NJ 07436

THE SERIOUS SINCLAIR. LEARN REAL
Power of ZX Computing. Full Line
Upgrades/Instructions. Catalogue-
$5 Applied on Purchase. NEW WORLD
CONCEPTS Box 587 Ogden, Utah 84402

///NEW ZXS1/TS1000 TEXT EDITOR! ! ///
/$2.95 For Listing, $5.95 On Tape/
Catalog $1-Refunded W/Order.To; BOB

LUCAS/401 N GEYER/KIRKWOOD/MO/53122

SYNTAX is published

monthly by a wholly-owned
subsidiary of The Harvard Group.

Syntax ZX80, Inc.

RD 2, Box 457, Harvard, MA 01451.

Telephone 617/456-3661.

12 issues, $29. Single issue, $4.

YES! Please send me 12 issues of SYNTAX for $29. 4/83

□ My check for $29 is enclosed. □ Please charge my □ MasterCard
Make checks payable to: □ Diner’s Club □ American Express

SYNTAX ZX80, INC. □ VISA D Carte Blanche account

account number _

exp. date_

bank number (MC only)

Publisher: Kirtland H. Olson
Editor: Ann L. Zevnik
Assistant Editor: Pamela Petrakos-
Wilson

Editorial Assistant: Pamela K. Vinal

© Syntax ZX80, Inc., 1983. All rights
reserved. Photocopying prohibited.
ISSN 0273-2696

signature _ _

Name _ Title _

Organization _ _ _ _ _

Address _ . _ _

City - - - State _ Zip

Day Phone/ - } _ _ Evening Phone ( )

1 own a EH Sinclair ZX80 EH Sinclair ZX81 Telephone orders call

□ TS1000

617-456-3661

23

SYNTAX

ARE YOU FOR SALE?

Cash or royalty terms for software
we feel is marketable. We'll treat
you right! Send YOUR requirements,
program + documentation to ROBOTEC,
Inc. 251 1st St. Perrysburg ,0H 43551

*************WATCH out*************
Great new arcade type game-16K
Keep the ball going, but watch out
for the Bird. High score List $3.00
Tape $5.00: SeySoft 304 Exler Road
Vine Gronve, Ky. 40175.

*WANT YOUR DISPLAY WHITE ON BLACK?*
Parts less than $5.00. ZX81/TS1000.

For plans, send $5.00 to J&J Assoc.
Rt. 4, Box 431, Mobile, AL 36609.

2 Sample programs on cassette
$2.00 Plus SASE. Programs,

3763 W. Crocus Dr. Phx, AZ 85023

SINCLAIR/TIMEX INERFACING TO
ANALOG and DIGITAL Devices. J.V.
Kane And Co. 109 Ardmore Avenue,
ARDMORE PA 19003. 215-649-1782

TRENDSETTER (ZX-81 TS) : Uses least
squares method for many trends to
data. Includes 3 point method for
Logistic & Gompertz growth curvdfe.
$15 check or M.O. for cassette and
FULL instructions: John Anunti,
3309-20th St., S.F., CA 94110

-New from SIRIUSWARE- Make back-up
copies of any std-f ormat Sinclair-
Timex tape - even unSAVEable tapes.
COPY* prog, on cass. tape - $10 ppd
Send SASE for catalog. SIRIUSWARE
6 Turning Mill Lexington, MA 02173

* * * *MEMOTECH ADD ONS*NEW PRICES****

Memopak 16K Memory - $46.95

Memopak 32K Memory - $88.95

Memopak 64K Memory - $144.95

Memopak CPI Print Inter face-$74 . 95

Memopak CPI-C Cable - $18.95

Memopak HRG Hi Res. Graphics$89.95
Prices include shipping.

Mass, residents add 5% Sales Tax
Pay by Personal Check, MC,or VISA #
Ask for new Software-Book Catalog
Atlantic Northeast Marketing, Inc.
P.0. Box 921 Telephone:

Marblehead, MA 01945 617-639-0285

FRONTIER SOFTWARE provides the best
in games and practical programs for
the ZX81 and TS 1000. For a free
list of available software write to
FRONTIER SOFTWARE, Box 385, Vilna,
Alberta, Canada, T0A 3L0.

* * * * * C.R.C. SOFTWARE * * * * *

* SINCLAIR - ATARI - VIC VERSIONS *

* Also *Smart* Printer Interface *

* Send $1.00 Refundable on First *

* Order For Information, Catalog *

* 2901 Auburn-Auburn Hts MI. 48057 *

H-E

H\RVVRD

GROLP

Bolton Road, Harvard, Mass. 01451

First Class

U.S. Postage
PAID

Harvard, MA
Permit No. 8
01451